Sansui AU-517 User manual

Brand: Sansui

Model: AU-517

Type: User manual

AU-517/717

1. SPCIFICA TlaNS

AU-717

Power output

Min. RMS, both channels driven, from 20 to 20 000 Hz, with no

more than 0.025% total harmonic distortion

85 watts per channel into 8. ohms

Load impedance. . . . . . . . . 8 ohms

Power bandwidth.

. . . . . . . . . . . .

20 to 20 000 Hz at or below

rated min. RMS power output

and total harmonic distortion

Total harmonic distortion (POWER AMP IN)

.....................

less than 0.025% at or below

rated min. RMS power output

Intermodulation distortion (70 Hz: 7 kHz = 4:1 SMPTE method)

'...........,.... lessthanO.025%

Frequency response (at 1watt) (POWER AMP IN)

..................,.. Oto200 OOOHz+OdB-3dB

RIAA curve daviation (PHONO) . . . . +0.2 dB - 2 dB

(20 to 20 000 Hz)

approximately 60 at 8 ohms

load

Damping factor.

. . . . . . . . .

Input sensitivity and impedance (1 kHz, for rated power output)

PHONO " " 2.5mV/47kilohms

(Max. input capability; 350 mV at 1 kHz, less than 0.01 % total

harmonic distortion)

AUX, TAPE. . . . . . . . .

. . . ..

150mV/47 kilohms

Output level (1 ,000 Hz)

TAPEREC(pinjack) " 150mV/47kilohms

PREOUT

...............

1V/47kilohms

Channel separation (1 kHz, at rated power output)

PHONO " betterthan60dB

AUX.................. betterthan65dB

Hum and noise (short-circuit, A-network)

PHONO .......... 78dB

AUX.............. 100dB

Controls

BASS.

. . . . . . . . .

Tone selector

TREBLE

...........

Toneselector...........

SUBSONIC FILTER.........

HIGHFILTER............

MUTING

. . . . . . . . . . . . . . .

LOUDNESS (-30dB) .,.

:!:10dB (50 Hz)

200 400 Hz

:!:10dB (15kHz)

, 6 kHz

3dB(16Hz), 6dB/oct

3dB (10kHz), 6dB/oct

20dB

9dB at 50Hz

7dBat10kHz

Power requirements

Powervoltage............. 100, 120 220 240V (50/60Hzl

120V (Usable 110 - 130V)

60 Hz (for U. A. & Canada

only)

Power consumption

Maximum consumption. .

. . . . .

Rated consumption

. . .

Dimentions................

Waight

. . . . . . . . . . . . . . . . . . .

735 watts

425 watts 500 VA

430mm (16-15/16") W

168 mm (6-5/8") H

389mm (15-3/8") D

8kg (39.2lbs) net

19.8 kg (43.7 Ibs) packed

2. BLOCK DIAGRAM

r----____n

:r:t: I

UUI

, 'I

--' a: I

-"'"""~~,, . ,"-"-,

0.. I

'" I

"" :~ ,~ ,~ ,

0.. ILn_____-

0 ~ ;;'1 ~

7'" , I ~

~ ~

t --------_

:_---------+ _

:i!!:i!!, -

$; ~'"" ~ ';;~~: , , ,"- "- ,-- --.,.

n_____------

_n_______n__-

,'j,- - - - - --';",

"'I

":"1

0..

""I

:: I

:51

,21

L______--

-- --- -----,,-------

IIA

JlI'-

Ii;;;

II,

JI'"

I:~

"(0

"'"

d ..:..

- - - - -- ---

JL______-

n__----_n

----------

ttJ~

r--------- ---------------------

---- -- -.. ~:

1'-'

"'I

..:..' u

0.. I ~

"" I

"gl

L______- - ------------- -- - -- - -

- -----_

~r----(0 -(0 ------------- "C0 -(0"- - c0~---

~: g~

&ii&ii

.:.:

i'i~

~ ""

L__- -- - --

--- ---- --~ -~--~--_!_--_

AU-517/717

3. ADVANTAGE AND OPERATION OF

POWER AMPLIFIER CIRCUITRY SECTION

DOl

ZDOI

FETOl"

... '-'

ZDO2

1. Advantage

OThere is neccessity not to decrease the phase response till

DC range in order to increase the music signal response of

extremely low frequency range. Therefore, this amplifier is

employing no capacitors except ones for phase compensa-

tion, and has an almost perfect transient characteristics.

0 The first stage FET (2SK9?) is a dual FET of even characteris-

tics and has a large Gm and no-leakage current at normal

temparature.

To avoid the influence by temperature drift, such as center

voltage (OV) deviation, this FET is used as differential am-

plifier and operates at cross point which is the optimum

point of drain current (at about 3mA) against the tempera-

ture drift.

OTransistors, TROS and TRO?, the push- pull pre- driver stage

functions as current differential amplifier that the stabilized

operation can be obtained. In addition, the collector cur-

rent of these transistors is enough high to make linearity

excellent.

OSince this Amplifier employs phas~ advancer circuits (CO6

COB, C1S, R29, C16 and R30J, which have not been fre-

quently used, to compensate the phase characteristics on

high frequency range and is also made to have enough

4. ADJUSTMENTS

1. Driver Circuit Board Adjnstments

Note: 1.

STEP I

Master Volume....

........ ........

Minimum

RoomTemperature................

SUBJECT I EQUIPMENT I MEASURE OUTPUT I

current on each stage to increase the through-rate, the

performance on high frequency range is conspicuously

improved.

OTo avoid the voltage deviation, regulated power supply

circuit composed of ZDO1, ZDO2 is employed.

2. Operation

The use of differential amplification at first stage dual FET

(FETO1 , FETO2) and connection of the FET to the differential

amplifier composed of TRO1, TRO2, make possible to obtain

enough gain and remarkable low distortion.

The output signals of TRO1 and TRO2 are untiphase.

The output signal of TRO2 adds to TROS, on the other hand

the output phase of TRO1 is inverted by TRO3, then, it becomes

input signal of TRO4 and TRO? which are cascoded connection.

The output signals at TROS and TRO? are inphase that the op-

eration of this stage is push-pull drive and current differential

amplification. The power amplifier of the final stage is com-

posed ofSEPP (Single Ended Push-Pull) symmetry comple

mentary in 3-stage darlington connection type.

TRO9 and TR10 are composing current limiter circuit to protect

power transistor from break-down by overload.

(See the picture of top view on page

3. For adjustment, run the unit for more than 3 minutes after

the power is switched on.

ADJUST ADJUST FOR CONDITION

DCOV DC Volt Meter Speaker Terminal F-2721 DC OV:tSmV 0 Set VRO1 and VRO2 to center

L-CH VRO1, VRO2 position.

0 Then, for the purpose of pro-

DCOV Same as above Same as above F-2722 DC OV:tSmV ceeding the accurate adjust-

ment, set the voltage to 0 volt

VRO1, VRO2 by VRO1 first and VRO2 next.

Bias Current Same as above TP Terminal (+) (-) F-2721 DC 20mV:t1mV 0 By turning VRO3 counterclock-

of F-2721 VRO3 wise, the bias current is de-

creased gradually.

Bias Current Same as above TP Terminal (+) (-) F-2722 DC 20mV:t1mV

of F-2?~ VRO3

AU-517/717

5. OTHER PARTS

1. Top View'

(AU-517) Power Cord

(AU-717)

Speaker Terminal 8P Input Terminal

4P Input Terminal

R701, R702

CO701-CO703

C703

T70J

C701

C704

T702

C702

Power Cord

Speaker Terminal 8P Input Terminal

4P Input Terminal

CO701-CO703

C703

T701

C701

C704

T702

C702

R701, R702

Parts No.

Parts List ~AU-517/717?

Stock No.

Ground Terminal

TR703

TR701

VR02

VR01

VR03

VR01

VR02

VR03

TR702

TR704

round Terminal

TR703

TR701

TR702

TR704

Description Parts No. Stock No. Parts No. Stock No. Description

Description

ClO5

C707-714

R701,7O2

C0701-7O3 2450060

5066280

2290190

3800010

3800190

3800320

2300060

2300090

2410091

2410830

0659801

0602109

0202221

OlpF 150V M.

1.0pF 100V M.

2200 2W NH.

Voltage S.I.cto' SW EU. 85

Gm""d r.,ml"ol AU-717 Only

TRlOI,7O2 0305840-2

TRlO3,704 0300520-2

2411240

2230052

AU-517 OnlY

TR701.702 0306450-

TR703, 704 0300830-2 2SCI403AR,

2SA745A R, 0, Y r,o","'o, ClOt-704 0559520

T7OI,7O2 4002580

4002584

4002582

F70t 0432290

0434060

0435150

AC 0,11., XX

AC 0",., EU,

Sp.ok., r.,m;"ol

Pow., Co,d XX

Pow., Co,d EU

Pow., COld 85

Pow., F". Hold.,

Pow., F". Hold., EU. 85

Vollog. S.I.clOt Pl'g XX

Vol log. S.I.ctOl Sock.' XX

12000pF 63V E.

C701-704 0559518

T701.702 4002590

4002594

4002592

F7O1 0432270

0432500

0435140

Pow., r,o",10,m., XX

Pow., r,0",10,m., EU. 85

Pow., r,o",10,m., Ul. CSA

5A 125V

7A 125V ow., ".

5A Pow., F". EU, 85

2SCI116R,

2SA747 R, 0, Y r,o",I,'o'

15000pF 63V E.

Pow., r,o"do,m., XX

Pow., r,o",fo,m., EU. 85

Pow., r,o",fo,m., Ul. CSA

5A 125V

lOA 250V Pow., F".

15A Pow., F". EU.

2. Front View (AU-717)

AU-517/717

Parts List ~AU-517/717/

P."s No. Stock No.

15318850

1015170.

15318840

1015230.

15318840

1101780.

15318840

1190410

15318830

1190410

15326611

1171150

r326611

1171630

1171610

Descdpt;on

7 Type Koob

250kO (MN)x2 80'00" Vo"me

L=25 P=5

7 Type Koob

100'0 (C)x2 T,eb". 80", Vol,m,

L=25 P=7

7 Type Koob

'Olo,y Switch, Sp,ok",

7 Type Koob

'oto,y Switch. Top' Copy

7 Typa Koob

'otOty SwiJ,h. 'op" Sel,"ot

Le"t Switch Koob

L"" Switch, Tooe Del,ot

L"" Switch

Koob

La,et Switch. Pow"

L"e' SwiJd. Powat EU. 8S

. Figures

Connectors & Pin Ass

Connectors

Type A (3-10 pins) Type B (2-6 pins)

P.", No. Stock No. De,cdpt;on P.", No. Stock No. De,c';pt;on

(326620 P"h Switch Koob AU-717 Only

5286721 Koob G,ide !5326611 Le"t Switch Koob

1131400 P"h Switch.

Top, Ploy 11 71130 L"" SwiJd. Lo,do"

2430290 Haod Phooe Jock !532661 I L"" SwiJ,h

Koob

5006670 8000ot 1171130 L"" Switch. S,b,oo', Filt"

5336600 So",,, 80dge

15318860 7 Type Koob

0319110 light Emitt,d Dioda 1090280 150l0 x2 5kO x 2VoI,me L=25 P=9

5507070 Leg

15326611 Le'et SwiJd Koob

AU-S17 Only 1171120 Le", Switch.M,tiog

15326611 Le,et Switch Koob 15326611 Le"t Switd Koob

1171120 Le,et Switch, Lo,doe, 1171130 Le'at SwiJd, High Filtet

15326611

L"" SwiJd Koob

r326620

P"h Switch Koob

11 711 20 Le", Switch,S,b,ooic Filtet 5286721 Koob G,ide

15318860 7 Typa Koob 1131400 P"h SwiJch.

T"o 0",

1 090250 150,OX2Vol,meL=25P=7 7007570 Fto" Pooal A"y

7007580 FtC" Pooel A"y 5058730 80ttom Plote

5058740 80ttom Plote 0319110 Light Emitt,d Diode

Slock No.

2 p,ns 2420450

3 Pins 2420460

3 P'n~ED) 2420650

4 PInS 2420470

5 Pins 2420480

6 PInS 2420490

NOTE: Since stock number of Jamale connectors (type 61 with wires are not

shown in each parts list of Complete crrcUit board, please refer to the

above parts list when ordering the connector.

Abbreviations

Pin Ass

Type A (3-10 pins) TypeB(3-10 pins) Type C (3-10 pins)

Type D (2-6 pins) Type E (2-6 pins)

Ce.

: Carbon Resistor

: Solid Resistor

: Cement Resistor

: Metal Film

Resistor

: Fusing Resistor

: Non.lnflammable

Resistor

: Mylar Capacitor

C. : Electrolytic Capacitor

BP. : Bi. Polar Electrolytic

Capacitor

: Ceramic Capacitor

: Mica Capacitor

: Oil Capacitor

: Polystyrene Capacitor

: Tantalum Capacitor

Mi.

AU-517/717

6. PARTS LOCATION & PARTS LIST

Terminal Circuit Board (AU-517 Stock No. 7595201)

(AU-717 Stock No. 7595171)

Conductor Side

2 F-2723 ualizer Circuit Board (AU-517 Stock No. 7551171)

(AU-717 Stock No. 7551161)

Conductor Side

Since some of capacitors and resistors are

omitted from parts lists in this Service

Manual, refer to the common parts list for

capacitors & resistors which was appended

previously to each Sansui Manual.

Parts List

Parts No. Stock No. Description

2200480 8P lop"' Te.miool

Parts List

Parts No. Stock No. De.cr'ption Position

TRo"o, 0300900. 2SA906 (G. H) , B. 2 B

TROO. 0300470. 1 2SA726(w) (F. G) 1 A. 2 B

TR05. 0300900. 1 2SA906 (G. H) 1 B. 2 B

TROl. 0306290. 1 2SC140011) (E. T.oo,'sto. 1 B. 2 B

TRoo. 0300B90. 2SA750(3) (E. U) 1 A. 2A

TRll. 0306290. 2SC14001I) (E. 1 A. 2A

TRI3. 0306290. 2SCI4001I)IE. 1 A. 2A

TR15 0300890. 1 2SA750(3) (E. U) 1 A. 2A

DOI. 0340120 VO1212 ) 1 A. 2 B

Doo. 04 0340120 VO1212 Vo"sto. 1 A. 2A

Ports No. Stock No. Description Position Ports No. Stock No. Description Position

COI. 0602109 1.0pF 100V 1 C. R47. 0193820 82rJ

) ~

1 A. 2A

COl. 08 0620121 120PF 18. 2 B R49. 0193820 82rJ ,W 1 A. 2A

CI3. 0620151 150pF 50V 1 A' SOl 1190420 lop", Ro'o.y Switch 1 B. C

C15. 0625272 2700pF 1 A. 2A 502 1190410 Tope Copy Ro'o.y Switch 2 B. C

C23. 0625103 10000pF 1 A. 2A 2410920 3P Pio A,, y Type E

RI7. 0231561 '"0 1 A. 2A

RI9. 20 0231220 nrJ 1 A. 2A AU-7T7 Only

R23. 0231273 27krJ y,W 1 A. 2A 2410910 2PP'"A,, yTypeE

R33. 0231153 15krJ 1 A. 2A

R35. 0231304 300krJ 1 A.

3. F-2673 Tone Control Circuit Board (AU-517 Stock No. 7561841)

Conductor Side

AU-517/717

Parts List

Pa.ts No. Stock No. Dese.'ption posmon

TRol.02 0306010. I 2SCI222!2) (U. E) f lB. I A

TRO3. 0306010. 2SCI222!2)(U. E) lB. I A

TR05. 0300890. I 2SA750(31 (E. U) T,o""!o, 1 B. I A

TRoUB 0306010. 2SCI222(2) (U. E)

Dol. 02 0340120 VD1212 Vo';"o, 1 B. 2 B

COl.02 0610361 360pF 50V

C05. 060233B 33pF 100V

VROI 1015170. I 250kO(MN)x2 BoloooeVR2A

SOl 1171120 lood"" lem SwHoh 2A. B

S02 1171150 Toos Deleo! lew SwH,h 2 B

SO3 1171120 Sob'o,l, Fllte' l.,a, SwH,h 2 B

2410570 5P PI, A,, y Typa D

2410920 3PPI,A,, yTypaE

4. F-2674 Bass & Treble Volume Circuit Board (AU-517 Stock No. 7561861)

Parts List

5. F-2670 Pre-Main Switch Circuit Board (AU-517 Stock No. 7595211)

(AU-717 Stock No. 7595191)

6. F-2667 Ta e Pla Circuit Board (AU-517 Stock No. 7595181)

(AU-717 Stock No. 7595221)

Pa.ts No. Stock No. Dese"ption

VROI.02 1015230.1 IOOkO(C)x2 T,abla. Bo" Voloma

Parts List

Parts No. Stock No. Dese"ption

SOl 1110290

2200500 PRE-MAIN Sllda Sw'Ioh

4P I,po' !a,m',ol

Parts List

Pa.ts No. Stock No. Dese"ption

SOl 1131400

2410700

2410920

Topa P"h SwHoh

6P PI, A,, y Typa F

3P PI, A,, y Typa E

AU-517/717

7. F-2720 Tone Control Circuit Board (AU-717 Stock No. 7561941)

Conductor Side

, Parts List

Pacts No. Stock No. Desc'iption Position Pacts No. Stock No. Desc,iption Position Pa"s No. Stock No. Desc,iption Position

TRO1, 0360370-2 2SA798 (F, G, H) lB. 1 A DO1, 0340120 VD1212 Vo""o' 1 C. 1 A SOl 1171130 MO1log SW

TR03, 0300470, 2SA726M') (F, G) 1 C. 1 A Cor. 02 0620361 360pF 50V 2 B S02 1171130 lo,doe" SW 2 B

TRos, 06 0306290, 2SCI400(1) (E, U) I C. l A COS, 0602338 33pF 100WV S03 1171150 Tooe Deleot SW

TR07, 0300890, 2SA750(3) (E. U) T,o","'o, 1 C. 1 A C09, 0620121 120pF 50V lB. 1 A S04 1171130 S,b,oolk FII", SW

TR09, 030629D, 2SCI400(I) (E, U) 1 C. 1 A R37, Dl91820 820 ; \!4W 1 C. 1 B 505 1171130 High Fllte, SW 2 B

TRII, 03D6290, 1 2SCI4DO(1) (E,U) 1 C. 1 A R39, 0191820 820 4 1 C. l A 2410570 5P Plo A" y Type D

TR13, 14 0300890, I 2SA750(3) (E. U) 1 C. 1 A VRO1 1015170. 250kO(MN) X 2 8010ooe VR 2410920 3P Plo A"y Type E

8. F-2665 Bass & Treble Volume Circuit Board (AU-717 Stock No. 7561851)

Conductor Side Parts List

Pa,ts No. Stock No. Desc,iption

VROr.02 1015230,1 100kO(C)X2 T,eble, Bo"Vol,me

9. F-2666 Turn Over Switch Circuit Board (AU-717 Stock No. 7561871)

Conductor Side Parts List

Pa,ts No. Stock No. Desc,;ption

SO1 1131410 T010 am P"h

10. 21 Driver Circuit Board (AU-517 Stock No. 7571721)

(AU-717 Stock No. 7571741)

Conductor Side

11. F-2722 Driver Circuit Board R-ch (AU-517 Stock No. 7571731)

(AU-717 Stock No. 7571751)

Conductor Side

Pa,ts No. Stock No.

Parts List

AU-517/717

Posmon

0306290. 1 25CI400111(E. U)

0306290. 1 25C140011l(E. U)

0300690. 25A750(3) (E. U)

0300890. 1 25A750(3) (E. u)

0300791. 25A899 (6. V)

0305951. 2 25C945 (G. p) T'o,,;$lo'

0306401. 2 25C1904 (6. V)

0305951. 2 25C945 (G. P)

0300791. 2 25A699 (6. V)

0308441- 25D362 (M. l. K)

0303271. 2 256537 (M. l. K)

0370251. 2 25K97 fET

0311160

"""'

0311160 1 52473D

0311160 152473D mode

10311160

152473D

0311160 151566

0316170 EG6O1-

0316170 laM' D;oda

E 601.

TRol

TR02

TRo3

TR04

TRo5

TR06

TRo7

TRoa

TRoo

TRIl

TR12

TR13

fTor

Dol

D02

Do3

Do.

ZDol

ZD02

Cor

CO5

CO7

0620101

0620331

0669505

0202222

0231332

0103392

0202152

0210470

0103560

0103479

0135338

0202100

0132229

Ro.

Ros

Ro,

Roo

RJO

R28

R3I

R36

R37

R43

R44

R45

R46

R.7

lor 4210290

1033570

1035330

1035310

VROI

VR02

VRO3

AU-517 Only

R03 0107102

R16 0107223

R28 0210560

R31 0210560

AU-717 Only

RO3 0107122

R16 0107273

R22 0107103

R28 0210470

R31 0210470

Dasc"ptlon

100pf\

330pfl 50V P.

5pf 50V C.

2'0 2 W N.J.'.

3'0\ "

3'01 "W M.

9kO YzW

1.5'0 2W N.J.

470\ "

4701 "W N.J.'.

~~g

"W CR.

70 "

330\

3301 5 ~ Ca.

100 2W N.J.

20 2 W Ca.

I.5pH Co;!

1000(6) Vol,ma

2'0(6) Vol,ma

!k0(6) Vol,ma

"0\

22'01 "W .

560\ "

5601 "W N.J.'.

1.2'O

2nO y.,W CR.

10'0

470

470 .2W N.J.'.

(j I Ltlr G-e

1 A. 3 D

16.

1 A. 3 D

26.

1.26.3.4C

16.

26.

1 B. 3C

1 A. 3D

2A.

1 B. 3C

2 B. 4C

2A. 4 D

1 A, 3D

2A.

1 B. 3C

2A. 4 D

1 A. 3D

2A.

1 A. 3D

26.

1 B. 3C

2 B. 4 D

1 B. 3C

2 B. 4C

2A. 4c.D

2A.

2A. 4 D

1 A. 3D

2A.

1 A. 3D

lA. 3C.

2A.

1 A.

1 A.B. 3C.

1 A.

2A. 4 D

1 A. 3D

AU-517/717

12. 2675 Power Supply & Protector Circuit Board (AU-517 Stock No. 7502331)

Conductor Side

Parts List

P.,ts No. Stock No. D.se"ptlon Position P.,ts No. Stock No. D.se"ptlon Position Pa"s No. Stock No. D.se"ptlon Position

TRoL02 0308.521, 2 2.5D438 (E, F) 1 B. 3 B D17-18 (0311160 152473D 2 B C603 0602338 33pF 100WV 2 B

TR03, 0303361, 2 25B560 (E, F) 1 B. 3 B 0311180 151588 ROL 02 0202272 7kO 1 A. 3A

TR6or 0305951, 2 25C945 (Q. P) 2 B (0311160 152473D 2 B R03. 0202272 7kO J.R.

DINO 1 A. 3A

TR602 0305951, 2 25C945 (Q, P) 2 B 0311180 151588 Res, 06 0210101 1000

t r;,W

2 B. 3 B

TR603 0305951, 2 25C945 (Q, P) T,a"I"ar D6or 0310350 10D2 (152227) 2 A R07, 0210101 1000 2 J.R. 1 B. 3 B

TR604 0300.510, 25A733 (P, Q) 2 B D602 0310350 10D2(152227) 2 A RI9. 0202100 100

TR605 0305951, 2 25C945 (Q, p) 2 B D603 0311160 152473D 2 B R6or 0202391 3900 2 W J.R. 2 B

TR606 0305951, 2 25C945 (Q, P) 2 B D604 0340120 VD1212 Vari"or 2 B R602 0202222 2kO 2 B

TR607 0305951, 2 25C945 (Q, P) 2 B D605 0311160 152473D 2 B R6I6 0210472 7k0 y,W J.R 2 B

DOL 02 0311530 30D2 I A. 3A D606 0311160

: ~~:~~~

Dlod. 2 B

D03, D607 0311160 2 B Rl601 r 150250

R.lay

0311530 30D2 D6O8 0310340 10Dl (152226) 1150370 R.lay

Des. 06 0311530 30D2 1 A. 3 A

D07. 0311.530 30D2 1 A. 3A ZDor, 0316570 RD33E (B) r 1 B. 3 B FOL 02 0435160 4A 12.5VPow., I". Ul, C5A 1 B. 3 B

D09, 0310350 10D2(152227) 1 B. 3 B ZD03. 0316570 RD33E (B) Z, r DI 1 B. 3 B 0432300 6A 125V AC f". XX

DII, 03103.50 1 OD2 (1 52227) 1 B. 3 B ZD601 0315760 EQAOI.06R .. 0 2 B 0435160 4A- AC I". EU.

DI3, 03103.50 1 OD2 (1 52227) 1 B. 3 B ZD602 0316390 RD6.2E (B) 2 B 2310220 F". Hold.r

D15, 0310350 1 OD2 (1

52227) Dlod. 3 B. 3 B COI-02 2310230 F". Hold.,

EU. B5

0655103 10000pF 500V 1 B. 3 B

AU-517/717

13. F-2663 Power Supply & Protector Circuit Board (AU-717 Stock No. 7502321)

Conductor Side

Parts List

Parts No. Stock No. Description Position P.rts No. Stock No. Description Po.ltlon P.rt. No. Stock No. D..crlptlon Po.ltlon

TROJ. 0308451. 250356 (0. E) 18. 3 B D13-14 (0311160 1524730 1 B. 1 A CO!.02 0655103 1O000Pf

1 500V

1 A.

TRo3. 0303281. 2 25B526 (0. E) 2 B 0311180 151588 Diode CO3. 0655103 10000pf 1 A.

TRo'. 0306270. 1 25C1708 (E, U) 1 B. 3 B DI5-16 10311160

1524730 lB. 1 C603 0602338 33pf 100WV 2 B

TRo7. 030071 O. I 25A847(I)(f. G) 0311180 151588 RO!.O2 0202332 3k0 1 2W 1 A.

TR09. 0306270. I 25CI708(f. 1 B. 3 B D"-18 10311160

1524730 1 B. 3 B RO3. 0202332 3kO N.I. 1 A.

TR11, 0300710, 2SA847 (f, G) 2 B 0311180 151588 Ro"" 0210101 1000 1 y,w 1 B. 3 B

TR601 0305951. 2 25C945 (Q, p) T,oO$lst.. 2 B D6o' 0310350 1002(152227) RI5, 0210101 1000 2 2 B

TR602 0305951. 2 25C945 (Q. P) D6o2 0310350 1002(152227) R37, 0202100 lOO

TR603 0305951, 25C945 (Q. P) D.o3 0311160 1524730 2 B R60' 0202391 3900 2 B

TR60. 0300510, 25A733 (P. D6o4 0340120 VO1212 Vodsto, 2 B R602 0202272 7kO 2 W I.R. 2 B

TR60' 0305951. 2 25C945 (Q. P) D6os 0311160 1524730

DIode

2 B R603 0202272 7kO 2 B

TR6" 0305951. 25C945 (Q. p) I B D606 , 0311160 1524730 2 B R6" 0210472 7kO y,W I.R.

TR607 0305951. 2 25C945 (Q, P) 1 B D607 0311160 1524730 2 B

Dol, 1 A. D6o' 0310340 1001 (152226) RL601 ("50250 R.loy

0311290 55.

Do3. 1 A. D609 0340120 VO1212 1150370 R.loy

0311300 55- VO1212 Vo",'o'

Do"06 0310350 1002(152227) 1 A. D6IO 0340120 Fo!.02 0432290 5A 125V Pow., fuse UL, C5A I A.

DOl. os 0310350 1002(152227) I A. ZDo!.02 0316310 RO-13E (B) 1 B. 3 B F01-0' 0432500 7A 125V AC Ius. XX 1 A.

Do,. 10 0310350 1002(152227) I A. ZD601 0315760 EQAOI.06R Z.n., Diode 0435170 5A. AC luso EU, B5

DI!.12 0310350 1002 (IS2227) 1 A. 3A ZD60' 0316390 RO. 2E (B) 1 A 2310220 fuse Hold., XX

2310230 fuse Holde, EU, B5

AU-517/717

7. SCHEMATIC DIAGRAM

7-1. AU-517 Power Supply Section

xx EU. BS Model Only : La D'esent;an et res sDec;ficat;ans sant suscept;b'es d' e mad;fiees sans p'eav;s Da' su;tes d'amel;a,at;ans eventuelles.

And",ungen, d'e dem technoschen Fa'tsch"" d,enen. ble'ben va'behalten

. Des;gn and spec;ficat;ans subject to change w;thaut nabce fa' ;mp'avement.

50/60H,

AC ;~~:;;g r"_,, 4'T

s""

xx Model Only EU. BS Model Only

7-2. AU-717 Power Supply Section

xx EU. BS Model Only

;'::;,~;;

50/60Hz

PC",

rWHtTE-

F",

'OA -

IOO-;'OV

5A-220-240V is",.

F",

JSA-T

FOT-Q4

7A 72SV

AC 220, 240f'

50H, F,,_~ 5A-T

FOJ

xx Model Only EU. BS Model Only

NOTE:

AS to U. , c.S. , B.5., ES and XX marked in the Parts Lists, note the followings:

, c.S.A... . Approved parts used in the unit which is applicable to the U.5. and Canada under safety standard.

S. ......... . Approved parts used in the unit which is applicable to British under safety reguirement.

U. .. . . . . . . . . Approved parts used in the unit which is applicable to Sweeden, Denmark, Norway, Finland, West

Germany, and Switzerland under safety reguirement.

XX .......... Parts used in the unit which is applicable to other countries excepting mentioned above.

* In parts lists, parts with no above mark in of "Description" are all the same as XX marked parts.

AU-517/717 AU-517/717

7-3. AU-517

r-- 2

6691 I F-2~m-

-::,~==--.-- --- ~=---

2SCI2221E,UI 2SA750IE,U)

rREC

TAPE-

LPLAY

RIGHT CANNEL

PHONO

PHONO I'?

L__-

J,:

61 iJ:\:6

01!

-----

TR" 2SD438(E,

S"ector 2n3

Tape Copy 2?23

Tope pz"y 2667

Loudn"s 2673

Tone F-2673

Subsonic Filter F-2673

PRE -POWER F-2870

Speak""

Po...r

BROWN PT", PURPLE

3S.5V

s".- 1. phonO-2

1. hono-

3. wn"

4. au'

S".- tuner

2. off

3. source

50"2

50201

S"', 1. source

"pe-7

SOT"~ 1. 5""""

2. '.pd

S"'. 1. off

S".- 1. .,f",

So,"", 1. off

2. 16Hz

S""b 1. CONNECTED

g:;':;~o ":::::CED SEPARATED

5"".- 1. off

3. 8

4. A+B

1. off

eRAY

i:J

PURPLE

35.5V 05 Ii"

087"

PURPLE

3s.

eRAY 69,J

:::1'

PURPLE 104

3s.

PT",

AC ,ooV

SO/50Hz

JAPANMod,IO'IJ RED

S",

C", 0.

BROWN

SYM80L

CERAM'C

MYLAR

STYROL RED

ALL RES'STORS

!Ii WATTS

UNLESS OTHERW'SE

NOTED

*1. METAL FILM

RESISTOR

TOLERANCE

*2. NON FLAMABLE

RESISTOR

*3. FUSING

RESiSTOR

5-",

TROo.

CO 2SC9451P,

TR" 08 2SCI9041B,

2?21 TR"02 2SCI400lE,

TR03.

04 2SA750IE,

TR05. 2SA8991B,

TR" 2SD382IK,

TR" 2SB537IK,

FET"

2SK97

~ ~~~ "

c!i'" c!i

R,,22K

---

F-ir"ill" -

6751 ~2K

-;-- ;;-j '"

c,,

IO(2)

5",.

R", 220(2)

J",

0 10 1010

+ - - +'---" '---"

Sysum A

LED",

28A733

28A750

230060

28C945

25C1222

25C1400

280438

FeB

28A726

28A847

2SA906

28C1708

258537

280382

B r

28A899

28C1904

28K97

1001

1002

VO1212

1824730

lAD 1

1801

i62E

1l3E

I =

3002

,!y

AU-517/717 ! AU-517/717

7-4. AU-717

F~720'

---

2~i7S0IE.V)23

illfI ~!::'!3 I

112iA906IF,G) "

TR",

LEFTCMANNEL 2SA726 IF,

I ~Dr212

~Cf400lE. TR" 2SA899IB.

TR" 2SC9451P,Q) TR"" 2SCI904IB.l.

TR" 2SC94~

R,d7We)

TR"." 2SCI400IE, TR""

"'3

2SA750IE,

~ ~~ ~

TUNER

AUX

C"OO47 R" lo(2I

f---"""J3

R" '-2

Z0602

RD6.

SO"

146

PT,O7

LED", LEDT" LED", LED",

PRE-POWER H67D s"o. CONNECTED

g~~~gjT

g%U

;iu;,pE,jJ SEPARATED

off

A'S

olf

OnLy)

Sd"tor F-1723 SOk.'

ALL RESISTDRS

WATTS

UNLESS

DTHERWISE

NOTED.

METALFILM

RESISTOR

TOLERANCE!/%

*2. NON FLAMABLE

RESISTOR

'3. FUSING

RESISTOR

BROWN

'!l

5"'0"

S"ako"

Top, Copy 2723 5",.

5",

Powa AC

7aoV

Sa/SOH,

JAPAN MODEL

ONLY)

ACI1DVSOH,

(ULCSANDOELDNLY) 5"'

70" Play 2667 507'

SOle,

5",,

5020, 2.

5",. I. dd"t

504", I.,yff

5"", I.ofl REO

C", am

Moting 2664

L"d"" F-2664

70n2 F-2664

Sobsoni, Filtor 2664

High Filta 2664

2SA733

2SA750

2SC945

2SC1222

2SC1400

FCB

2SA726

2SA847

2SA906

2SC1708

258526

250356

258537

250382

c:,u:

B r

2SA747

25Cl16

25A899

2SC1904

u I

fCf

2SK97

1001

1002

VO1212

1524730

EQAO1.06R

EQBO122

R06.2E

ROl3E

5S3

11 'f1

5S3R

vrru If~

8. OPERATION OF PROTECTOR CIRCUIT

This protector circuit contains two functions at abnormal

condition; a speaker protector circuit against DC voltage

appearing at output, and speaker protector circuit against

over-current.

e ?:'

R40 r620 4'/A

CID t 1'6. 27K

CID

'-c'

'-O

f?5 ',i r:s

:jj +1 ~ ,

11;:"' ~.

(3) c::i :~

Ii: '

;';5 c,

, ) 0-

," '"

cfi

OJ (5):h

a., n (Ji4

~ V,

i;;

: '"

- d

~ I SS

~~~2X2 ~

34137

A. Speaker Protection Circuit against DC

voltage appearing at output

1. When an abnormal negative voltage appears at output

TR601 turns off, TR602 turns on and TR603 turns off so that

the relay, RL601 , keeps off in order to protect loudspeakers

from break-down.

2. While the relay, RL601 , keeps OFF, zero voltage(center volt-

age) controlling TR607 through D607 will increase, resultly

the LED701 as protector indicator, starts flickering.

3. When abnormal positive voltage appears at output ~, the

voltage is supplied to TR602 directly, and the operation of

the protector circuit is same as above mentioned 1,

B. Speaker Protection Circuit against

abnormal over-current

1. At the moment when abnormal excessive current flows

into power transistors, a transistor (TR09) detecting ex-

cessive over-current, on power stage becomes ON.

2. Then, DC voltage at ~ decreases, resulfly TR604 turns on

and positive certain voltage appears at ~'

3. As mentioned above, when TR602 turns on, the relay, RL601

keeps OFF; a certain positive voltage at~' turns on TR60S

too, resultly collector voltage of TR60S decreases and its col-

lector voltage keeps a certain voltage at ~ simultaneously.

4. By keeping a certain DC voltage at ~., the LED701 as pro.

tector indicator continues flikering, even though all cir-

cuits work completely.

POWE R OUTPUT

0602

R06.

lR6Ob

'-?B

D05, 06. 13.

D603. 605, 606, 1i07

1524730

0.04 VOl212

ZD601 EQAOI 06R

AU-517/717

0:::

LE0701

a:::

ell

0:::

C. Operation of astable multivibrator

1. When control.(bias) voltage is not supplied to the base of

TR607 in abnormal condition, TR606 and TR607, on astable

multivibrator repeat turning (switching) on and off alter-

nately each other by charging and discharging of capacitors

C606 & C607, resultly, the LED701 as protector indicator

continues flikering.

2, When the relay, RL601 is turned on, base voltage of TR607

becomes zero volt through D607 and TR606 becomes ON

resultly LED701 as power indicator lights up.

Sansui AU-517 User manual

Sansui AU-517 User manual

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